/**
* Constructor.
*
* @param rq request
* @param rs response
* @throws IOException I/O exception
*/
public HTTPContext(final HttpServletRequest rq, final HttpServletResponse rs) throws IOException {
req = rq;
res = rs;
final String m = rq.getMethod();
method = HTTPMethod.get(m);
final StringBuilder uri = new StringBuilder(req.getRequestURL());
final String qs = req.getQueryString();
if (qs != null) uri.append('?').append(qs);
log(false, m, uri);
// set UTF8 as default encoding (can be overwritten)
res.setCharacterEncoding(UTF8);
segments = toSegments(req.getPathInfo());
path = join(0);
user = System.getProperty(DBUSER);
pass = System.getProperty(DBPASS);
// set session-specific credentials
final String auth = req.getHeader(AUTHORIZATION);
if (auth != null) {
final String[] values = auth.split(" ");
if (values[0].equals(BASIC)) {
final String[] cred = Base64.decode(values[1]).split(":", 2);
if (cred.length != 2) throw new LoginException(NOPASSWD);
user = cred[0];
pass = cred[1];
} else {
throw new LoginException(WHICHAUTH, values[0]);
}
}
}
/**
* Checks a function for RESTFful annotations.
*
* @return {@code true} if module contains relevant annotations
* @throws QueryException query exception
*/
boolean analyze() throws QueryException {
// parse all annotations
final EnumSet<HTTPMethod> mth = EnumSet.noneOf(HTTPMethod.class);
final boolean[] declared = new boolean[function.args.length];
boolean found = false;
final int as = function.ann.size();
for (int a = 0; a < as; a++) {
final QNm name = function.ann.names[a];
final Value value = function.ann.values[a];
final byte[] local = name.local();
final byte[] uri = name.uri();
final boolean rexq = eq(uri, QueryText.RESTXQURI);
if (rexq) {
if (eq(PATH, local)) {
// annotation "path"
if (path != null) error(ANN_TWICE, "%", name.string());
path = new RestXqPath(toString(value, name));
for (final String s : path) {
if (s.trim().startsWith("{")) checkVariable(s, AtomType.AAT, declared);
}
} else if (eq(CONSUMES, local)) {
// annotation "consumes"
strings(value, name, consumes);
} else if (eq(PRODUCES, local)) {
// annotation "produces"
strings(value, name, produces);
} else if (eq(QUERY_PARAM, local)) {
// annotation "query-param"
queryParams.add(param(value, name, declared));
} else if (eq(FORM_PARAM, local)) {
// annotation "form-param"
formParams.add(param(value, name, declared));
} else if (eq(HEADER_PARAM, local)) {
// annotation "header-param"
headerParams.add(param(value, name, declared));
} else if (eq(COOKIE_PARAM, local)) {
// annotation "cookie-param"
cookieParams.add(param(value, name, declared));
} else {
// method annotations
final HTTPMethod m = HTTPMethod.get(string(local));
if (m == null) error(ANN_UNKNOWN, "%", name.string());
if (!value.isEmpty()) {
// remember post/put variable
if (requestBody != null) error(ANN_TWICE, "%", name.string());
if (m != POST && m != PUT) error(METHOD_VALUE, m);
requestBody = checkVariable(toString(value, name), declared);
}
if (mth.contains(m)) error(ANN_TWICE, "%", name.string());
mth.add(m);
}
} else if (eq(uri, QueryText.OUTPUTURI)) {
// serialization parameters
final String key = string(local);
final String val = toString(value, name);
if (output.get(key) == null) error(UNKNOWN_SER, key);
output.set(key, val);
}
found |= rexq;
}
if (!mth.isEmpty()) methods = mth;
if (found) {
if (path == null) error(ANN_MISSING, PATH);
for (int i = 0; i < declared.length; i++)
if (!declared[i]) error(VAR_UNDEFINED, function.args[i].name.string());
}
return found;
}